1SDA073630R1 ABB E2.2S 250 Ekip Dip LSIG 3p F HR Air Circuit Breaker 250 A

Why Choose the ABB E2.2S 250 Ekip Dip LSIG 3p F HR Air Circuit Breaker?

The ABB E2.2S 250 Ekip Dip LSIG 3p F HR, order code 1SDA073630R1, is a three-pole fixed air circuit breaker from the ABB SACE Emax 2 range, designed for protection and control of low-voltage power distribution systems. Rated at 250 A, it combines the E2.2S performance level with an Ekip Dip LSIG electronic trip unit for long-time, short-time, instantaneous and earth-fault protection.

This fixed-version Emax 2 breaker is equipped with adjustable rear horizontal (HR) terminals, providing a practical connection arrangement for integration into switchboards and power distribution assemblies. The E2.2 frame offers robust electrical and mechanical performance for industrial, commercial and infrastructure installations where selective protection and dependable circuit interruption are required.

At 440 V AC, the E2.2S frame provides a rated ultimate short-circuit breaking capacity of 85 kA and a rated short-time withstand current of 66 kA for 1 s. Combined with the Ekip Dip LSIG protection unit, this makes the 1SDA073630R1 a capable solution for protecting feeders and distribution circuits in systems with significant prospective fault currents.

Key Advantages

• 250 A ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• Ekip Dip LSIG electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection.
• 85 kA ultimate short-circuit breaking capacity at 440 V AC.
• 66 kA short-time withstand current for 1 s supports demanding selective distribution systems.
• Fixed three-pole construction for permanent switchboard installations.
• Adjustable rear horizontal terminals support flexible busbar and switchboard integration.

Key Features

• ABB SACE Emax 2 E2.2S series.
• 250 A rated current (In).
• Three-pole construction.
• Fixed (F) installation version.
• Rear horizontal (HR) terminals.
• Ekip Dip LSIG electronic protection trip unit.
• 85 kA rated ultimate short-circuit breaking capacity (Icu) at 440 V AC.
• 66 kA rated short-time withstand current (Icw) for 1 s.
• 1000 V AC rated insulation voltage (Ui).
• 12 kV rated impulse withstand voltage (Uimp).

Advanced LSIG Protection for Power Distribution

Air circuit breakers protect low-voltage distribution systems by interrupting abnormal currents before they can cause unacceptable thermal or electrodynamic stress to cables, busbars and connected equipment. The ABB E2.2S 250 combines an 85 kA breaking capacity at 440 V AC with the flexibility of electronic protection, making it suitable for distribution systems where dependable fault clearance and coordination are essential.

The Ekip Dip LSIG trip unit provides long-time protection against overloads, short-time protection for selective short-circuit coordination, instantaneous protection against severe short circuits and earth-fault protection. This combination makes the breaker particularly suitable for installations requiring comprehensive protection of feeders and low-voltage distribution circuits.

Typical Applications

• Main and sub-main low-voltage power distribution switchboards.
• Industrial manufacturing and process facilities.
• Commercial building electrical distribution systems.
• Infrastructure and utility installations.
• Feeder protection requiring LSIG functionality.
• Systems requiring selective short-circuit and earth-fault protection.